Sexlinked Inheritance

X-linked Inheritance. The key feature of the X-linked mode is that males and females are affected disproportionately. X-linked genes are transmitted in either a monogenic dominant or recessive mode of inheritance. Females can be either homozygous or heterozygous for X-linked traits, whereas normal males are always hem-izygous for loci located on the X chromosome.

Y-linked Inheritance. The key feature of the Y-linked mode is that only males carry the gene. Y-linked inheritance is displayed by genes located on the non-recombinant region of the Y chromosome. Normal females never possess a Y chromosome, and normal males are always hemizygous for the Y chromosome. Absence of the SRY gene on a Y chromosome, through either mutation or crossing-over (to an X chromosome), results in a condition known as the XY female syndrome.

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Health And Fitness 101

Health And Fitness 101

Self-improvement is a thing which you must practice throughout your life because once you started to believe that you are perfect then, things will start to become complex. You need to know that no one is perfect and no one can be perfect.

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